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Regional analgesia techniques as adjuncts to general anesthesia in pediatric cardiac surgery: an updated systematic review and meta-analysis of randomized controlled trials
Journal article   Peer reviewed

Regional analgesia techniques as adjuncts to general anesthesia in pediatric cardiac surgery: an updated systematic review and meta-analysis of randomized controlled trials

Bruno Francisco Minetto Wegner, Gustavo Roberto Minetto Wegner, Gabriel Lemos González, Vitor Alves Felippe, Alesson Marinho, Tatiana Souza Nascimento and Archit Sharma
Regional anesthesia and pain medicine
03/30/2026
DOI: 10.1136/rapm-2025-107470
PMID: 41912271

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Abstract

BackgroundRegional analgesia (RA) is increasingly used in pediatric cardiac surgery, but evidence supporting its benefit remains fragmented. This systematic review and meta-analysis aimed to determine the “class effect” of RA.MethodsA systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted. Data sources included PubMed, Embase, Cochrane Library, and Web of Science, searched up to July 10, 2025. We included RCTs of pediatric patients undergoing cardiac surgery that compared any RA technique (neuraxial, peripheral nerve blocks, or local infiltration) against general anesthesia with systemic analgesia alone.Results31 RCTs (n=2245) were included. Adjunctive RA was associated with significant reductions in intraoperative fentanyl (MD −2.50 µg·kg⁻¹; 95% CI −3.84 to −1.15; 95% PI −9.51 to 4.52; I²=97%), 24-hour intravenous morphine (MD −0.33 mg·kg⁻¹; 95% CI −0.55 to −0.11; 95% PI −1.17 to 0.51; I²=96%), and improved recovery. Benefits included shorter time to tracheal extubation (MD −1.72 hours; 95% CI −2.93 to −0.52; 95% PI −7.78 to 4.34; I²=99%), reduced ICU stay (MD −0.25 days; 95% CI −0.34 to −0.16; 95% PI −0.61 to 0.11; I²=93%), and prolonged time to first analgesia (MD 2.95 hours; 95% CI 1.86 to 4.04; 95% PI -1.42 to 7.31; I²=97%). Subgroup analyses showed outcome-specific, inconsistent effects.ConclusionThere is very low to low certainty of evidence that adjunctive RA is associated with reduced opioid exposure and improved recovery in pediatric cardiac surgery. Substantial heterogeneity and imprecision markedly reduce confidence in the estimated effects, which should therefore be interpreted cautiously.RegistrationPROSPERO CRD420251073543.
Analgesics, Opioid Meta-Analysis Pain, Postoperative Pediatric Anesthesia REGIONAL ANESTHESIA Review

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